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NCT07490756 · ClinicalTrials.gov registry record · NA
Methods of Assessing Sweat-Electrolyte Testing (MAST)
A NA study, sponsored by University of Arkansas, Fayetteville.
- Completed
- Registry status
- NA
- Development phase
- 20
- Enrollment target
NCT07490756: Completed NA study, sponsored by University of Arkansas, Fayetteville.
NCT07490756 is a NA study that has completed, run by University of Arkansas, Fayetteville. The registered enrollment target is 20 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT07490756, a NA study, has completed, sponsored by University of Arkansas, Fayetteville.
- COMPLETED
- Registry status
- NA
- Development phase
- 20 participants
- Enrollment target
Study Summary
If you agree to be in this study, you will be asked to report to our exercise science research center for two total visits (2 separate trials separated by at least 4 days) and the total time commitment for this study will be approximately 5 hours. Prior to each trial, you will be provided with urine jugs and food/fluid logs to record food and drink intake for 24hr. You will be asked to log food/fluid intake 24hr leading into trials. We ask that you match your diet for both trials, as much as possible. Also, we ask that you match caffeine consumption prior to trials. Lastly, we ask that you refrain from strenuous exercise and alcohol consumption for at least 12hrs leading into trials. Either of these exclude your participation in the study for safety reasons. You will be asked to provide a small urine sample upon arrival to the lab before trials. The purpose of this is to verify hydration prior to exercise in the heat. If you are not hydrated upon arrival, you will be provided and asked to drink 16oz (a bottle) of water prior to the trial. Next, you will be seated, have 2 electrodes placed on your inner forearm and researchers will apply electrical stimulation for about 5min. Typically, people feel slight tingling or nothing at all during this procedure. This is a passive way of making you sweat on your forearm. Sweat will then be collected via a small disc applied to your forearm. Immediately following this, you will have your nude body mass measured and you will be instrumented with a lab-based sweat collection patch (large band-aid on the forearm), a Gatorade sweat collection patch on the opposite forearm, and the Hdrop sweat detection device on your left upper arm. the hDrop device is non-FDA approved device because it does not provide a medical diagnosis, but serves as an education and recovery tool. These devices will all be synced with electronic applications (phone apps) to assure data collection. You will then self-insert a rectal thermistor \~15cm past the
Primary Outcome
Data will be compared between lab-based and hDrop sweat rate. Sweat rate (Liters/hourr) will be quantified during exercise. At the conclusion of 60 minutes of exercise, lab-based sweat rate and hDrop sweat rate data will be compared to determine validity.
Interventions
- DEVICE Wearing the hDrop hydration sensor
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 20 participants |
| Start Date | 2025-03-07 |
| Est. Completion | 2026-02-13 |
| Phase | NA |
What the finished NCT07490756 record still lists
NCT07490756 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).
The record links to 0 conditions, and to 1 intervention - of which Wearing the hDrop hydration sensor is the first listed.
NCT07490756 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT07490756 about?
NCT07490756 is a clinical study titled "Methods of Assessing Sweat-Electrolyte Testing (MAST)". If you agree to be in this study, you will be asked to report to our exercise science research center for two total visits (2 separate trials separated by at least 4 days) and the total time commitment for this study will be approximately 5 hours. Prior to each trial, you will be provided with urine...
What is the current status of trial NCT07490756?
This trial is currently completed. It is a NA study. The enrollment target is 20 participants. The study started on 2025-03-07. Estimated completion is 2026-02-13.
What interventions are being tested in trial NCT07490756?
The interventions under investigation include: Wearing the hDrop hydration sensor (DEVICE).
Who is sponsoring clinical trial NCT07490756?
This trial is sponsored by University of Arkansas, Fayetteville, which has 25 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT07490756's enrollment target sits among peer trials
20 1768th of 2000 higher than 140 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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